The bad news is heat illness can be deadly. Every year, thousands of workers become sick from exposure to heat, and some even die.

The good news is there’s a simple way to prevent heat-related illnesses and it boils down to three little words – water, rest, shade.

The Occupational Health and Safety Administration (OSHA) in the U.S. Department of Labor has initiated a nationwide outreach campaign designed to let employees and employers know about the hazards faced by outside workers exposed to summer heat.